refactor: standardize project creation lifecycle

[ash1shkumar]

📝 Description

This PR improves the project creation workflow by introducing reusable lifecycle helpers and centralizing project creation state management.

Previously, project creation responsibilities such as form reset operations, session resolution, authentication validation, and lifecycle state coordination were handled directly within component logic. As additional project metadata, validation requirements, and creation capabilities are introduced, maintaining consistent lifecycle behavior can become increasingly difficult.

Changes Implemented

• Added reusable project form reset helper
• Added centralized session token resolution helper
• Standardized project creation lifecycle management
• Reduced duplicated lifecycle operations
• Improved separation between UI rendering and workflow logic
• Centralized authentication session handling
• Improved consistency across project creation state transitions

Benefits

• Improved project creation reliability
• Reduced lifecycle duplication
• Cleaner component architecture
• Better separation of concerns
• Easier future feature integration
• Improved maintainability
• Enhanced extensibility for future project creation workflows

🎯 Type of Change

• Refactoring
• Code Quality Improvement
• Maintainability Enhancement

✅ Testing

• Verified project creation continues to work successfully
• Verified authentication validation remains functional
• Verified unauthorized users are properly handled
• Verified form reset behavior remains unchanged
• Verified dialog close functionality works correctly
• Verified loading state behavior remains intact
• Verified error handling remains functional
• Verified project creation callback executes correctly
• Verified deadline handling remains unchanged
• Verified team size and description fields continue to function correctly
• Verified no UI regressions after lifecycle refactoring

Fixes #206

Expected Labels

level3 NSoC'26

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